... ,OEM manafacturer 3.Material:rubber ring and steel Pipe expansion joint : 1:Function Borrowing ... parts basic Informationand materials Part NameItemTrade markDesign codeMain body,Gland,Limited short pipe.Carbon steel,Quality carbon steel,Nodular cast iron,Stainless steel ... -1992Bolt,Stud,Power Screw,Nut.Carbon steel,Quality carbon steel,stainless steelQ235A,35,45,00Cr17Ni14Mo2,1Cr18Ni10TiGB/T4237 ...